The phrase "to approve the pipeline" means giving permission or agreeing to build and operate a pipeline for transporting oil, gas, or other resources across a certain area. Full definition
He has said he would not approve the pipeline if it significantly raised greenhouse gas emissions. (entrepreneur.com)
These numbers are worth keeping in mind when considering not just the environmental impact of recently approved pipeline projects — but also whether or not they're even good long - term investments. (canadianbusiness.com)
Finally, we can't lose sight of the big picture — the wider economic interests that are served by approving this pipeline. (corporatemapping.ca)